485801561 has 16 divisors (see below), whose sum is σ = 580065024. Its totient is φ = 397799424.

The previous prime is 485801531. The next prime is 485801567. The reversal of 485801561 is 165108584.

It is a cyclic number.

It is not a de Polignac number, because 485801561 - 2²² = 481607257 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (485801567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184325 + ... + 186941.

It is an arithmetic number, because the mean of its divisors is an integer number (36254064).

Almost surely, 2^485801561 is an apocalyptic number.

It is an amenable number.

485801561 is a deficient number, since it is larger than the sum of its proper divisors (94263463).

485801561 is a wasteful number, since it uses less digits than its factorization.

485801561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 485801561 is about 22040.9065376177. The cubic root of 485801561 is about 786.1153960200.

The spelling of 485801561 in words is "four hundred eighty-five million, eight hundred one thousand, five hundred sixty-one".